Kinson



(No Model.)

W. H. ATKINSON.

v REPININ GN OAMPHOR AND APPARATUS THEREFOR. N0.f247,'79s.. Batentedmoct. 4,1881

N. FUCHS. Fhola hllmgnp r .1 mm m n c UNITED STATES PATENT OFFICE.

WILLIAM H. ATKINSON,

OF LONDON, ENGLAND.

REFINING CAMPHOR AND APPARATUS THEREFOR.

SPECIFICATION forming part of Letters Patent No. 247,793, dated October 4, 1881.

Application filed March 28, 1881. (No model.)

To all whom rt may concern:

Be it known that I, WILLIAM HENRY AT- KINSON, a subject of the Queen of Great Britain, residing at London, England, have invented new and useful Improvements in Refining Oamphor and in Apparatus therefor, of which the following is a specification.

This invention relates to improvements in the construction of apparatus employed in the refining or subliming of camphor, whereby the operation is rendered more easy, simple, safe, and economical, and whereby the camphor may be produced in bells, blocks, or slabs of any desired shape.

In carrying out my invention, instead of employing the ordinary glass vessels or flasks known as bomboloes, which serve for one operation only, I employ vessels or boxes made of iron or other suitable metal or material, and provided with a removable cover, where necessary. The inner surface of the said vessel or box is provided with a removable casing or liningof thin sheet-lead or other suitable metal or alloy, a similar lining being employed for the under side of the cover of the box or vessel.

'To make my invention better understood, I will proceed to describe the same by reference to the accompanying drawings, in which I have represented views of two forms of apparatus suitable for carrying out my invention; but it is to be understood that these forms of apparatus are merely for the purpose of illustration, and that other forms of apparatus may be employed.

Figure l is a longitudinal section of a rectangular-shaped box or vessel with its removable lead lining, the cover being removed. Fig. 2 is a similar view, with the cover audits lining placed over the open top of the box or vessel. Fig. 3 is a similar view, showing the method of forming the joint; Fig. 4, plan of Fig. 3. Fig. 5 is a sectional elevation, showing the improved apparatus constructed in the .form of the ordinary glass bombolo.

In Figs. 1, 2, 3, and 4, a a a represent a rectangular-shaped box, made preferably of suitable sheet metal, such as iron.

I) b is the removable casing or lining of thin sheet-lead or other suitable metal or alloy, the

upper edges of the casing or lining projecting beyond the upper edges of the box, as shown.

0 is the removable cover, having an opening, (1, in any suitable position to allow of the escape of the steam, vapor, or heated air.

6 is the lining of the under side of the cover.

To make use of the apparatus, the eamphor to be refined or sublimed is placed in the lined box or vessel, Fig. 1. Asheet of lead, e,is then fitted to the cover 0, and the cover cthus lined is placed on the box, as shown in Fig.2. The projecting edges of the lead lining b and e are then lapped or doubled one over the other, as shown in Figs. 3 and 4, so as to form a tight joint. The apparatus is then placed in a sandbath and the refining or sublimin g operation completed in the usual manner. As soon as the refined camphor shall have become cool the cover a is removed and the lead lining b and 6, containing the refined camphor, is drawn out of the box and the lead peeled from the camphor which it incloses,and the camphor is then trimmed in the usual manner. box maybe then relined for another operation.

The lead lining peeled from the camphor may be rerolled, so that there is practically no waste of lead.

By the employment of my improved apparatus the refining or subliming operation is completed in less time than heretofore, and with less cost of fuel and labor, as will be well understood.

The hereinbeforedescribed apparatus may be constructed with a jacket, to allowof superheated steam being employed in place of a sand-bath, as will he understood without further description.

Fig. 5 shows the apparatus consisting of a vessel, f, of sheet-lead, constructed in the form of an ordinary glass bombolo, (by suitable means, such as bythe use of aform or templet constructed in parts, so'as to allow of its removal from the interior of the vessel,) thelower half resting in a metal receiver or vessel, g. If required, the upper half may be inclosed with a metal casing.

Having thus described my said invention and the best means with which I am acquainted for carrying the sameinto effect, Iwould hav e it understood that I do not confine myself to The vessel or the precise details herein laid down, as the subliming eamphor consisting of a box or vessame may be varied without departing from sel having a lining of sheet metal or alloy, and the peculiar character of the invention; but with a cover having a lining of sheet metal or What I do claim isalloy, the projecting edges of these two linings I5 5 1. The described improvement in the probeing adapted to he lapped or doubled one over cess of refining or subliming camphor, consistthe other to form a tight joint, substantially as ing in refining the same While surrounded by shown and described.

sheet metal or alloy, which may afterward be \V. H. ATKINSON. readily stripped from the refined cake, all sub- Vitnesses: 1o stantially as shown and described. G. 13. REDFERN,

2. The improved apparatus for refining or F. PRICE. 

